Unique Organogel Formation with Macroporous Materials Constructed by the Freeze-Drying of Aqueous Cyclodextrin Solutions

作者：Marui Yasuhiro; Kikuzawa Akira; Kida Toshiyuki; Akashi Mitsuru^*

来源：Langmuir, 2010, 26(13): 11441-11445.

DOI：10.1021/la1009434

Macroporous cyclodextrin materials (MP-alpha-, beta-, and gamma-CDs) were easily fabricated by the freeze-drying of aqueous solutions of alpha-, beta-, and gamma-CDs. These MP-CDs showed the absorption ability toward various organic solvents and oils to give organogels at ambient temperature. The morphological changes of the MP-CD microstructures were observed through the absorption of organic solvents. In particular, the absorption of polar organic solvents with hydrogen-bond forming ability, including 1,4-dioxane and ethanol, by the MP-CDs caused remarkable morphological changes in the microstructures. The absorption of these polar solvents by MP-alpha- and gamma-CDs resulted in the formation of channel-type assemblies of alpha- and gamma-CDs, respectively.

• 出版日期2010-7-6